*{ 
    padding: 0;
    margin: 0;
    box-sizing: border-box;
    font-family: cas;
    font-weight: 400;
}
@font-face{ 
    font-family: cas;
    src: url(../font/cas.otf);
}
article{ 
    background-color: rgba(255, 0, 0, 0.5);
}
